Question

A system loses 14.2 kJ of heat while performing 7.2kJ of
work on the surroundings. If the initial internal energy, E, is 77.6 kJ, what is the final value of E?

56.2 kJ
70.6 kJ
99.0 kJ
84.6 kJ

Answer 1

What is 77.6-14.2-7.2?